Re: [CALL FOR TESTERS] VESA High Resolution Console support from DragonFly

Hi, Eric,

在 2005-05-25三的 13:28 +0900，Eric Kjeldergaard写道：
> 2005/5/23, Xin LI <delphij_at_frontfree.net>:
> > Hi, Jeremie,
> > 
> > $B:_(B 2005-05-23$B0lE*(B 02:38 +0200$B!$(BJeremie Le Hen$B<LF;!'(B
> > [snip]
> > > One question however : is it supposed to consume more CPU than classical
> > > non-VESA text mode ?
> > 
> > I think so, it should consume more CPU than classical text mode console
> > since it draws characters, rather than giving the responsibility to the
> > video card.  A possible optimization would be to map the video card
> > memory into the space.
> 
> Tested on my Thinkpad R40 : Radeon 7500.  Is it supposed to consume a
> LOT of cpu?  Perhaps there's something funny with -O2 or similar
> because some things are VERY slow.  I have not, however, noticed any
> major bugs, but screen redraws will take ~1 second if the screen is
> not cleared and thus causes powerd to kick my processor up to full
> speed often.  Also, the screensaver (logo_saver) seems to take a while
> to display.  The screen goes black for 10 - 15 seconds before the
> screen saver displays.  Through all this, though, it's still so worth
> it.

Yes, it requires more CPU cycles if you use raster mode.  Does it also
slow down your console if you are running under text mode?  I hope
not :-)

Cheers,
-- 
Xin LI <delphij delphij net>  http://www.delphij.net/